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Rockford Fosgate Punch Pro PPS4-8 (Sold Individually)

250 Peak (125W RMS) 8” Punch Pro Series Pro-Audio 4-ohm Speaker

18

$99.99

List price $99.99

BE423 main

Boss Elite BE423

450W Peak 4" Rage Series 3-way 4-ohms Full-Range Car Speakers

$30.99

List price $34.42

Shop all 2005 BMW 645Ci Car Audio, Speakers, & Electronics

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Race Sport Accessories 9006TLED

9006 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pin Point Projection Optical Aims

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9006 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pin Point Projection Optical Aims

• 9006 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

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This product fits your 2005 645Ci
Was $89.00 Details
$69.00

Available

Ships in 10-14 days

• 9006 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

Diamond Audio VSP4BMW

160W Peak (80W RMS) 4" VSP Series 2-way 4-ohm Component Speaker Set for select 2003-2025 vehicles from BMW

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160W Peak (80W RMS) 4" VSP Series 2-way 4-ohm Component Speaker Set for select 2003-2025 vehicles from BMW

• 80 watts Peak Each, 40 watts RMS Each
• Silk Dome tweeters
• Reinforced Glass Fiber cone material
• Impedance:
• Sensitivity: 85.6 dB

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This product fits your 2005 645Ci
$449.99

In stock

Only 1 Left!

• 80 watts Peak Each, 40 watts RMS Each
• Silk Dome tweeters
• Reinforced Glass Fiber cone material
• Impedance:
• Sensitivity: 85.6 dB

Metra OS-BMW84V3

345W Peak (115W RMS) 8" OptiSound Series 4-ohm Underseat Subwoofers for select 2001-2024 vehicles from BMW, MINI

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345W Peak (115W RMS) 8" OptiSound Series 4-ohm Underseat Subwoofers for select 2001-2024 vehicles from BMW, MINI

• Peak Power: 345 watts
• RMS Power: 115 watts
• Impedance: 4 ohms
• Direct fit for select 2001-2024 vehicles from BMW, MINI

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This product fits your 2005 645Ci
Was $362.99 Details
$325.99

In stock.

• Peak Power: 345 watts
• RMS Power: 115 watts
• Impedance: 4 ohms
• Direct fit for select 2001-2024 vehicles from BMW, MINI

Crux SWR-A

Steering Wheel Control Retention Interface for Analog SWC

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Steering Wheel Control Retention Interface for Analog SWC

• Retains Steering Wheel Controls
• Retains VR Command
• Works with Sony Radio with CarPlay Function
• Dimension: 3.5" L x 2.5" W x 7" H

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This product fits your 2005 645Ci
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$43.95

In stock

• Retains Steering Wheel Controls
• Retains VR Command
• Works with Sony Radio with CarPlay Function
• Dimension: 3.5" L x 2.5" W x 7" H

Race Sport Accessories H7TLED

H7 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pinpoint Projection Optical Aims

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H7 Terminator Series Fan-less Shallow-mount LED Conversion Headlight Kit with Pinpoint Projection Optical Aims

• H7 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

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This product fits your 2005 645Ci
Was $89.00 Details
$69.00

In stock

Only 2 Left!

• H7 Fan-less LED Conversion Headlight Kit
• IP67 waterproof rating
• 2000 lux / 2250 lumens per bulb
• See 2-3 times further than stock lighting systems
• Low-mounting depth base design

Metra OS-BMW82V3

345W Peak (115W RMS) 8" OptiSound Series 2-ohm Underseat Replacement Car Subwoofers for select 2001-2024 vehicles from BMW, MINI

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345W Peak (115W RMS) 8" OptiSound Series 2-ohm Underseat Replacement Car Subwoofers for select 2001-2024 vehicles from BMW, MINI

• Peak Power: 345 watts
• RMS Power: 115 watts
• Impedance: 2 ohms
• Direct fit for select 2001-2024 vehicles from BMW, MINI

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Was $362.99 Details
$325.99

In stock.

• Peak Power: 345 watts
• RMS Power: 115 watts
• Impedance: 2 ohms
• Direct fit for select 2001-2024 vehicles from BMW, MINI

Bavsound BSD.GUSW.2O-KIT

320W Peak (160W RMS) Ghost Series Under Seat Subwoofers for BMW

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320W Peak (160W RMS) Ghost Series Under Seat Subwoofers for BMW

• Peak Power: 320 watts
• RMS Power: 160 watts
• Impedance: 8 ohm
• Polypropylene Cone
• Rubber Surround

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This product fits your 2005 645Ci
$649.00

In stock.

• Peak Power: 320 watts
• RMS Power: 160 watts
• Impedance: 8 ohm
• Polypropylene Cone
• Rubber Surround

Bavsound BSD.SW.E38R.ALL-KIT

Rear Deck Subwoofer Replacement Kit (4 Speakers) BMW E38 7 Series 1995-2001

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Rear Deck Subwoofer Replacement Kit (4 Speakers) BMW E38 7 Series 1995-2001

• Direct-fit subwoofer replacements for BMW E38 models
• 100% Do-it-yourself, plug & play, easy install
• Features UV-treated cones and dust caps
• Includes everything you need except tools
• Black glass fiber reinforced cones

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This product fits your 2005 645Ci
$399.00

In stock.

• Direct-fit subwoofer replacements for BMW E38 models
• 100% Do-it-yourself, plug & play, easy install
• Features UV-treated cones and dust caps
• Includes everything you need except tools
• Black glass fiber reinforced cones

Bavsound BSD.GUSW.8O-KIT

30W Peak (160W RMS) Ghost Series Under-seat Subwoofers for BMW

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30W Peak (160W RMS) Ghost Series Under-seat Subwoofers for BMW

• Peak Power: 320 watts
• RMS Power: 160 watts
• Impedance: 8 ohm
• Polypropylene Cone
• Rubber Surround

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This product fits your 2005 645Ci
$649.00

In stock.

• Peak Power: 320 watts
• RMS Power: 160 watts
• Impedance: 8 ohm
• Polypropylene Cone
• Rubber Surround

Crux AUX-ABMP1

Auxiliary Audio Input Interface for Fiber Optic Systems - Audi, BMW, Mercedes Benz & Porsche

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Auxiliary Audio Input Interface for Fiber Optic Systems - Audi, BMW, Mercedes Benz & Porsche

• AUX Audio Integration for Fiber Optic Systems
• For Select 2004 - Up BMW/Mercedes/Audi and Porsche Vehicles
• Dimensions: 3.5"L x 2.5"W x 7"H

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This product fits your 2005 645Ci
Was $349.95 Details
$215.95

In stock.

• AUX Audio Integration for Fiber Optic Systems
• For Select 2004 - Up BMW/Mercedes/Audi and Porsche Vehicles
• Dimensions: 3.5"L x 2.5"W x 7"H

Scosche LPBW15 Wiring Interface

Install new car stereo and retain steering wheel audio controls and safety warning chimes in select 2002-2018 vehicles from BMW, MINI

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Install new car stereo and retain steering wheel audio controls and safety warning chimes in select 2002-2018 vehicles from BMW, MINI

• Provides 12-Volt accessory power (RAP)
• Retains steering wheel control
• Retains all safety and warning chimes
• Micro-B USB Updatable

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$151.99

In stock

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• Provides 12-Volt accessory power (RAP)
• Retains steering wheel control
• Retains all safety and warning chimes
• Micro-B USB Updatable

Crux VRFBM-77D

Rear-view & Front-view Integration for BMW E-Series w/ CCC Navigation & 10-Pin LVDS Connector

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Rear-view & Front-view Integration for BMW E-Series w/ CCC Navigation & 10-Pin LVDS Connector

• Factory Improvement Harness for Activating Both Rear-view and Front-view Cameras
• For Select BMW Vehicles with CCC Navigation Systems with 8.8" or 6.5" Monitors
• Rear view and Front view camera inputs
• Compatible with all factory video accessories
• Dimension: 5" L x 2.5" W x 8.8" H

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This product fits your 2005 645Ci
Was $597.95 Details
$369.95

In stock.

• Factory Improvement Harness for Activating Both Rear-view and Front-view Cameras
• For Select BMW Vehicles with CCC Navigation Systems with 8.8" or 6.5" Monitors
• Rear view and Front view camera inputs
• Compatible with all factory video accessories
• Dimension: 5" L x 2.5" W x 8.8" H

Bavsound BSD.GUSW.4O-KIT

320W Peak (160W RMS) Ghost Series Under-seat Subwoofers for BMW

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320W Peak (160W RMS) Ghost Series Under-seat Subwoofers for BMW

• Peak Power: 320 watts
• RMS Power: 160 watts
• Impedance: 8 ohm
• Polypropylene Cone
• Rubber Surround

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This product fits your 2005 645Ci
$649.00

In stock.

• Peak Power: 320 watts
• RMS Power: 160 watts
• Impedance: 8 ohm
• Polypropylene Cone
• Rubber Surround

Metra 72-9005

Install New Speakers in select 1998-2023 vehicles from BMW, MINI

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Install New Speakers in select 1998-2023 vehicles from BMW, MINI

• Fits select 1998-2023 vehicles from BMW, MINI
• Direct connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

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$32.99

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• Fits select 1998-2023 vehicles from BMW, MINI
• Direct connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

Bavsound BSD.GUSW.8O.SELFTAPSCREWS-KIT

320W Peak (160W RMS) Ghost Series Under-seat Subwoofers for BMW

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320W Peak (160W RMS) Ghost Series Under-seat Subwoofers for BMW

• Peak Power: 320 watts
• RMS Power: 160 watts
• Impedance: 8 ohm
• Polypropylene Cone
• Rubber Surround

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This product fits your 2005 645Ci
$649.00

In stock.

• Peak Power: 320 watts
• RMS Power: 160 watts
• Impedance: 8 ohm
• Polypropylene Cone
• Rubber Surround

Metra 40-EU66 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 2005-2025 vehicles from BMW, Audi, Volkswagen

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Connect your factory antenna to a new aftermarket radio for select 2005-2025 vehicles from BMW, Audi, Volkswagen

• European antenna adapter, dual connector (FAKRA)
• European factory radio cable to aftermarket antenna
• Can also be used along with the 40-EU56 for “RF adapter” installations

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$48.99

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• European antenna adapter, dual connector (FAKRA)
• European factory radio cable to aftermarket antenna
• Can also be used along with the 40-EU56 for “RF adapter” installations

Metra OS-BMW4V4

690W Peak (230W RMS) 4" OptiSound Series Direct Replacement Front Door 2-Way Component 4-ohm Speakers for select 2001-2024 vehicles from BMW, MINI

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690W Peak (230W RMS) 4" OptiSound Series Direct Replacement Front Door 2-Way Component 4-ohm Speakers for select 2001-2024 vehicles from BMW, MINI

• 345 watts Peak Each, 115 watts RMS Each
• 1" Silk Dome tweeters
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Direct fit for select 2001-2024 vehicles from BMW, MINI

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This product fits your 2005 645Ci
Was $319.99 Details
$287.99

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Ships in 10-14 days

• 345 watts Peak Each, 115 watts RMS Each
• 1" Silk Dome tweeters
• Impedance: 4 ohm
• Sensitivity: 90 dB
• Direct fit for select 2001-2024 vehicles from BMW, MINI

Crux ACPBM-77X

Smart-Play Integration with Rear-View Camera Input for E Series BMW with CCC Systems (6.5” or 8.8” Monitor) and 10-Pin LVDS Connector

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Smart-Play Integration with Rear-View Camera Input for E Series BMW with CCC Systems (6.5” or 8.8” Monitor) and 10-Pin LVDS Connector

• Adds aftermarket rearview camera input
• Built-in on-screen display and setup.
• Allows connection of Android and other devices
• Dimensions: 10"L x 7.75"W x 3.25"H

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This product fits your 2005 645Ci
Was $839.95 Details
$538.95

In stock.

• Adds aftermarket rearview camera input
• Built-in on-screen display and setup.
• Allows connection of Android and other devices
• Dimensions: 10"L x 7.75"W x 3.25"H

Diamond Audio VSP4BMW - Open Box, Great

BMW® Specific 2-Way 4” Component Speaker Set

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BMW® Specific 2-Way 4” Component Speaker Set

• 80 Watts Max Each, 40 Watts RMS Each
• (25mm Silk Dome Tweeters
• Glass Fiber Reinforced Cone
• 4 Ohm Impedance
• Sensitivity: 85.6 dB
• Mounting Depth: 1.94"

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$359.99

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• 80 Watts Max Each, 40 Watts RMS Each
• (25mm Silk Dome Tweeters
• Glass Fiber Reinforced Cone
• 4 Ohm Impedance
• Sensitivity: 85.6 dB
• Mounting Depth: 1.94"

Metra OS-BMW4RV2

360W Peak (120W RMS) 4" OptiSound Series Direct Replacement 2-way Coaxial 4-ohm Speakers for select 2001-2024 vehicles from BMW, MINI

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360W Peak (120W RMS) 4" OptiSound Series Direct Replacement 2-way Coaxial 4-ohm Speakers for select 2001-2024 vehicles from BMW, MINI

• 180 watts Peak Each, 60 watts RMS Each
• 1" Silk Dome tweeters
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Direct fit for select 2001-2024 vehicles from BMW, MINI

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Was $213.99 Details
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• 180 watts Peak Each, 60 watts RMS Each
• 1" Silk Dome tweeters
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Direct fit for select 2001-2024 vehicles from BMW, MINI

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    FAQ for your 2005 645Ci

    Q: Can I upgrade the factory stereo system in my 2005 BMW 645Ci?

    A: Yes you can improve your sound in your 645Ci by upgrading your speakers and/or adding an amplifier. You may also be able to update the stereo and main display in your 2005 645Ci if there is a dash kit and harness solution available.

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    2005 BMW 645Ci

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    • Owner’s manual
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    • Vehicle produced after 2005: Inside driver’s side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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