GROM Audio BMW and Mini Smartphone Music Streaming Kit (GROM-USB3-BMWS BTD)

great device

my brother told me about this device, works as advertised and more...I have it installed on an '05 odyssey and use it for music and hands free phone.

BT Dongle works very well

Anybody who works with BT on a regular basis knows that Apple i-devices can be somewhat finicky. This BT dongle, paired with one of the GROM interface boxes has no such problems. I have tested this with the iPhone4, 4s and 5. Works well, sounds GREAT. Audio quality can also sometimes be an issue streaming BT, but not with the GROM BTD.

GROM Audio BTD

Purchased a GROM Audio BTD. The item was delivered fast and at a reasonable cost

easiest bluetooth to install

This was plug and play. The entire setup plugs right into my factory stereo... Which Honda made difficult to replace. Now I have Bluetooth for safety and streaming music.

echoes

overall, for music and audiobook listening, this is great, for calls, the microphone picks up the other persons voices, causing an echo. I have tried relocating the mic, and also wrapping the end of it, to "direct" it to only receive my voice waves, and i cannot get the echoes to stop.

excellent product

Works flawlessly with the factory stereo. Excellent sound quality and ability to charge you phone.

Junk. Avoid this at all costs, because it doesn't work.

The item works if you turn the key to the accessory position, but once you start the car, its cuts out, will not transmit any more sound into the radio, and will not recognize calls made on your phone, even though it shows that its still connected. Firmware updates from Grom didn't help it either, and it just leaves you with a large bundle of wires that get in the way. The microphone is also ridiculously large, and if mounted behind the steering wheel, it just gets in the way of the gauges. Do yourself a favor and just get the USB module and use an ipod or something, because this is just a frustrating mess with WAY too much wiring to deal with. I ended up cutting it out of the car because I didn't want to have to rip the dashboard apart to get it out, so returning it is out of the question as well.

By Marshall on March 9, 2023 Verified purchase

Getting Bluetooth and USB on a BMW 323i (E46 Chassis)

Purchased both the GROM Audio BMWSU3 along with the Bluetooth accessory dongle. Installation in the tight space behind the dash of the BMW 3 series is a bit of a challenge, patience and carefully following along with the many YouTube videos are a must. Once the GROM box and Bluetooth dongle were installed, along with the microphone for the phone, it worked great when I first started the car. However I could not get it to reconnect after restarting, I had to manually delete the Bluetooth entry on the phone and then reconnect to the GROM unit. After contacting GROM about the issue, they quickly determined that the unit needed a firmware update. Kudos to GROM for being so helpful, seeing as how I didn't buy the unit from them. After installing the firmware update through a USB stick, the unit works perfectly, even down to having the phone button on the steering wheel initiating a call. Sound quality on the microphone was excellent - the person I called couldn't tell I was calling handsfree over Bluetooth in the car.

By David on October 17, 2016 Verified purchase