Help me please i need wiring help???

I am trying to install my stereo but i need a partial live wire that is on whe the key is on the closes thing i could find was when the driver door is open the windows work. any ideas. the car is a 85 500sel euro

------------------
Dan Younes
---------------
1985 euro 500sel 220k
1981 300sd 278k sold
1979 240d 298k sold
1983 300sd 272k sold
1989 chrysler 2.2l Turbo
Leabaron 140k
1989 Dodge Carvan Se 295k
1996 C280(hopefully soon)

[Benzmac]

IN the radio harness, there is a wire that is black or black with yellow stripe. It is a 15 circuit (key on power).

------------------
Benzmac:
Donnie Drummonds
1991 GMC Syclone
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

my black wire is combined with a red wire can any one tell there i could get the wire harnes codes because blapunkt is no hwlp please i am going nutts with no radio

------------------
Dan Younes
---------------
1985 euro 500sel 220k
1981 300sd 278k sold
1979 240d 298k sold
1983 300sd 272k sold
1989 chrysler 2.2l Turbo
Leabaron 140k
1989 Dodge Carvan Se 295k
1996 C280(hopefully soon)

WhenI came to install a newer MBZ radio, I found that the harness used for the old radio was an extension and that once I pulled out all the wires for the radio, I found the orginal harness buried there. Once I disconnected the the extenion harness I was down to a direct plug-in for the newer MBZ radios, with power on and all.

Michael

------------------
82 300TD Turbodiesal +250, 000
86 Volvo 740 GLE 220000
85 Honda Civic 120000

ya i dont have that i have the origanal harness only

------------------
Dan Younes
---------------
1985 euro 500sel 220k
1981 300sd 278k sold
1979 240d 298k sold
1983 300sd 272k sold
1989 chrysler 2.2l Turbo
Leabaron 140k
1989 Dodge Carvan Se 295k
1996 C280(hopefully soon)

[Ted2222]

Dan,
I don't know how consistent MB has been between model years with their wire coding, but the wiring diagram I have for 1979 shows a red and black wire that carries power from the radio to the automatic antenna. A red wire, with a fuse in it, carries power to the radio and a brown wire attaches the radio to ground.

If you don't have a volt meter, I would suggest you go to an auto supply store and pick up a power indicator; probably a couple of bucks. You connect one lead of the indicator to ground and then probe the various wires with the other lead. If the indicator glows, you know you have power in that line. In the case above, for instance, (if it is right)a connection to the red wire should cause a glow when the key switch is turned on and there should be no glow if the key switch if off.

Hope this helps. Good luck. Let us know how you do.




------------------
Ted
1979 240D
160,000 miles

ya my uncle has one i am going to barrow. no i know on mine it is a blue wire for the antenna

------------------
Dan Younes
---------------
1985 euro 500sel 220k
1981 300sd 278k sold
1979 240d 298k sold
1983 300sd 272k sold
1989 chrysler 2.2l Turbo
Leabaron 140k
1989 Dodge Carvan Se 295k
1996 C280(hopefully soon)

[Ted2222]

Dan,

Since you indicated in your earlier posts that you don't have a clue about the wiring, how have you come to know that the blue wire is the antenna power wire?

Just curious.



------------------
Ted
1979 240D
160,000 miles

because i had to cut all the wire to do the harness and when i touchd live to blue antenna goes up

------------------
Dan Younes
---------------
1985 euro 500sel 223k
1981 300sd 278k sold
1979 240d 298k sold
1983 300sd 272k sold
1989 chrysler 2.2l Turbo
Leabaron 140k
1989 Dodge Carvan Se 295k
1996 C280(hopefully soon)

[Ted2222]

All right, good! You now have a power indicator as good as the tester I mentioned. What you need to do now is find a wire that will send the antenna up with the ignition switch on but won't with the ignition switch off. The correct wire should be right there in the radio opening. Hopefully you are now in a position to locate it.

Good luck, again.

------------------
Ted
1979 240D
160,000 miles