ml_mike

Hi everyone, I have just upgraded my head unit in a 2007 ML320 (w164)!! Everything is working well besides my radio reception, its terrible.


The aftermarket head unit is a s100 & has a radio antenna adapter which is the problem!! Ive tried everyway to connect this antenna adapter & it just doesn't seem to work!! Ive tried it with the 12V connect & disconnected, ive tried just the fm cable connect as well as the fm & am!!


Ive seen a lot of people have this issue but know one has resolved it with the ML320 (w164)


Please help!!!!!

jbondox

power the antenna up, not with that POS. I forget which wire it is, but it is easily found at the antenna modules. you need to turn on the antennas otherwise you are going to have crap reception

ml_mike

There are 2 antenna modules!! One in the tail gate passenger side & the other in the rear quarter panel on the passenger side!! How would I power them up & why aren't they powering up like when the factory head unit is installed?? Thanks for your input by the way, this does make sense!!

jbondox

there should be a single 12v turn on, and the obvious... its an aftermarket radio, not a factory radio

ml_mike

Its a plug & play unit though!! I haven't wired anywhere for the unit to work so far so I didn't think id need to power up the antennas!! Would I be able to power them from behind the head unit?? Would you know what colours they are?? Ive noticed the 2 orange wires aren't plugging in to anywhere??

jbondox

first, its a junk Chinese unit that says it is plug and play. i don't know the turn on color off hand and I don't have access to star wiring anymore. easiest way to find the wire at the antennas and then check continuity with the wires in the radio harness.

ml_mike

Anyone done this before & know what colors to tap in to behind the head unit??

2old2stop

I need bluetooth for my '04 SL500, the R230.475. I would not mind upgrading to full Android mirroring so I don't need to mount my phone for navigation. I looked at the Seicane Android 9.0 system on Amazon but don't like the reviews for the older units, especially regarding the radio reception. I also wonder about the optical communication compatibility. Any experience out there?