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Old 04-10-2016, 08:20 AM   #1
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Join Date: Jun 2004
Location: Normal, IL
Posts: 87
My Ride: 2001 325i Touring
Xtrons Android 5.1 Deck - No Sound - HiFi 01 325


I recently purchased the latest Xtrons Deck that is on eBay with Lollipop, quad core and has the upgraded 1024 pixel screen. It is very fast, gorgeous screen compared to the dynavin - except i have no sound.

My 01 touring has hifi audio, so i believe the equates to no digital processing. I assumed the head unit would drive the speakers. My dynavin and my old single din alpine deck both worked (and still work when i troubleshoot).

There is no option to enable/ disable DSP, the harness is plug and play. The remote amp wire is not hooked up nor has it been on my previous decks (as that should be firing an external amp).

CAN bus integration is working as steering wheel controls are perfect. Dimming, lighting , etc, all good. The harness oddly has both the older round pins and also the slotted style all on one pig tail. I was going to cut the other connector off , however now that I wonder what the deal is, I don't know.

Does Hifi have an AMP external to the deck like HK? I contacted the seller multiple times and they have not responded.

I would really appreciate if anyone has an idea. It feels like it has to be a setting, however i have literally went through every single possible menu. I am not sure if there is a way to get into th boot loader on this deck, I don't think that will make a difference. Wifi and Bluetooth work as does GPS , USB on the back, etc. All perfect.

2001 S54 Touring / Manual / Alpine White / Beige
2015 F31 / M-Sport/Alpine/Diesel
2008 M3 Sedan / Manual / Jerez Black / Fox Red
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Old 07-06-2016, 03:48 AM   #2
davo 01
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Join Date: Jun 2015
Location: cardiff
Posts: 23
My Ride: bmw e46 330ci conver
Hi, I am having the same problem, did you find a solution?
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Old 07-06-2016, 07:59 AM   #3
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Join Date: Jul 2008
Location: USA
Posts: 4,761
My Ride: 2001 330Ci
All BMW E46 cars made for the US market have a separate amp. I'm not sure where the amp is located in the touring, but in all other bodies the amp is located in the left side of the trunk. E46s didn't get DSP or any other sophisticated sound system, except for HK. The differences between the base sound system and the HK system are the amp and the speakers. The head units are the same.

The head unit provides a "turn on" signal to the amp. It's a 12VDC signal. The wire is integrated into one of the two connectors at the amp. I believe the wire is cream in color. Check the head unit's wiring diagram to make sure the signal is being provided by the new head unit.

Also, be aware that the OEM amp (base and HK) require balanced differential input signals. These are of a higher voltage than line level/RCA signals. Some have reported that the sound level is very low after the installation of an after market head unit.
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