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  #1  
Old 08-10-2003, 05:25 PM
Benzmeister's Avatar
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Need Help with Electrical connection

I recently purchased a set of PIAA driving lights. I intend to mount them in the oval cutouts in the lower front bumper of my 99 C280. The kit is complete with harness, relay fused lamps, etc. However, as we know the battery is mounted in the trunk and the harness is ain't long enough for that. I would like them to come on with the foglight position on the light switch, any suggestion on how I can find this wire or any better ideas for mounting them.
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Al Lueb
1999 C280 54K miles
1979 450 SLC 144K miles
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Old 08-10-2003, 06:14 PM
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I would take the power source from the alternator output circuit and power the lights through a relay using the foglight circuit to turn on the relay. Fuse the power circuit.
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Steve Brotherton
Continental Imports
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  #3  
Old 08-10-2003, 07:04 PM
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Alternator output

Quote:
Originally posted by stevebfl
I would take the power source from the alternator output circuit and power the lights through a relay using the foglight circuit to turn on the relay. Fuse the power circuit.
Which would mean I would splice into the alternator output circuit? Also I would have to splice the relay into the foglight circuit, the harness is already fused at both lights. I going to need a schematic to do this, anyone have one? I would be willing to pay a reasonable price to have a copy made and I would pay to have it mailed to me in Mass. THANK YOU FOR THE HELP, your idea seems logical and solid.
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Al Lueb
1999 C280 54K miles
1979 450 SLC 144K miles
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Old 08-10-2003, 07:18 PM
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Don't splice into anything and don't rely on the fog light circuit fuses. You aren't understanding what I am saying.

Take the power from the output lug; mount another eyelet don't cut the wires. This will power whatever lights you have without compromising the lighweight foglight circuit.

Only use the foglight circuit to turn on the lights. Use the circuit to turn on the relay which will not take much power.

DO NOT hook additional lighting to the existing load, provide a separate circuit from a good source (the alternator or starter are as good as the battery).
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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
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  #5  
Old 08-10-2003, 09:42 PM
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Quote:
Originally posted by stevebfl
Don't splice into anything and don't rely on the fog light circuit fuses. You aren't understanding what I am saying.

Take the power from the output lug; mount another eyelet don't cut the wires. This will power whatever lights you have without compromising the lighweight foglight circuit.

Only use the foglight circuit to turn on the lights. Use the circuit to turn on the relay which will not take much power.

DO NOT hook additional lighting to the existing load, provide a separate circuit from a good source (the alternator or starter are as good as the battery).
Gotcha now thanks again for the information.

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Al Lueb
1999 C280 54K miles
1979 450 SLC 144K miles
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