Hello guys was wondering if you could give me a little guidance on this. I purchased a 2000 Dodge Ram 2500 v10 that has a fuel gauge,trans gauge,oil gauge,coolant gauge, and a vacuum gauge. It also has an electric fan tranny cooler along with electric oil cooler thats relayed and hooked up nicely. After I got home I took off the lower dash assembly and all of these aftermarket accessories and gauges are tied into 1 "run ignition" wire! yikes! 1 wire powering all these gadgets. I was going to leave it, but I noticed theres not enough power to put anything in the cigg lighter. Sometimes the whole "run ignition" circuit will shutdown until I disconnect and reconnect the battery and then it will work perfectly again. Is there anyway to safely power all this aftermarket crap without having to flip another switch? My goal is to get all these accessories to turn on when I cycle the key to "run" would that be possible? Thanks

 

Run an adequately sized power wire from the batter, or PDC, into the cab, and have the current power supply circuit simply control a relay, that turns various stuff on, when the key is in run position. Be sure and have a fuse in the circuit as well.

 

Your new relay prob should be about 100amp size.

 

I think you have an extra zero on there.

 

Not with the cooler fans too.


Never mind, saw that those are already on relays...

 

Okay im following. Basically run relays on the accessories. So run power wire to a relay, and have it switched to the run position. Cool that will probably help aton with power draw. Was wondering how come none of the fuses blew.

 

go ahead and correct me but isn't your year truck breaking the grounds? that is why it didnt blow a fuse