butchered radio harness

[obg3506]

Ok, i have a 1999 Ml 320 non bose i think, that someone(lil bro) tried to hard wire in an aftermarket radio. Now being the highly intellectual dude that i am i have been able to get it to power up but for some reason i cannot get any sound from the speakers! If anybody have any ideas or suggestions it would be greatly appreciated my moms need her tunes. Thx!

[Casey]

does the car have a factory amp?

if so, you will need to find the wires for +12 switch and +12 constant to switch it on. im sure some may only have the +12 switch and perhaps its own fuse.

its a mercedes? (i googled lol) never screwed with one. im sure its not (too) difficult

---------- Post added at 07:17 PM ---------- Previous post was at 07:16 PM ----------

oh and just for the record, next time buy a harness from crutchfield. and dont hack the stock harness up.

[obg3506]

Yeah, im confused! google gives me tech gibberish. im trying to get on to benz world hopefully someone can explain in laymens.

Thx

[quazar]

Connect the blue or the blue/white (depending on which one is the amp turn on wire) to the orange wire on the MB harness if you had the Premium sound system in it. This should turn the factory amp on.