I have a 02 c240 I removed the stock radio and I want to install a new aftermarket radio I bought everything the wiring harness and fiber optic cable and the indash kit but now I am stuck I there are 3 plugs that went to the factory but the new wiring harness has 2 slots what do I have to do? to get it to work .

 

You will have to find a wiring diagram of the OEM head and cut the pigtail off. Cut it so it can be reattached or resold.
Match the cables to the new head pigtail. If you are talking about fiber connections, you might have to get tech support from the new radio mfg.

Cheers, Gator

 

do you mean i have to cut the stock pigtails and wire it straight to the radio?

 

Where is the best place on to ground the radio

 

Maybe this will help.

 

do i have to splice into the actual mercedes wire though

 

Which wiring harness did you purchase? Was it a Metra 70-1784?

 

YEAH the one they had at autotoys.com

 

As long as you have the Metra 70-1784 (harness), Metra 40-VW10 (antenna adapter), and Metra dash kit, then you're all set. You wont have to do any cutting and splicing, as the Metra harness and radio harness match color to color.

 

hey chief i cant figure why my car aint powering up the radio

 

Thank's Chief,

I visited instology some time ago looking for radio info. but it turned out to be a fuse. I fixed my right side door control system today and found yet another fuse box. 4 on this car so far.
fuses are our friend.
Ground cables for audio amplified systems should remain 1 foot or less. for the head find a metal part on the dash and use a good fastener.

Cheers, Gator