12V switched source

[Supra5MGTE]

I need a 12V switched, that doesn't get cut off when cranking. I need to hook up:
-O2 sensor heater
-4 Autometer electric gauges
- 3 coils
-Fuel pump relay (+12V trigger)

I don't think all that uses that many Amps, but that's what i'm hooking up so any ideas?

[BillyM]

I'd run an ignition based relay for those, keep it seperate other than at the battery, safest way to get a clean signal, especially if you are going to do any datalogging of that o2 sensor.

--BillyM

[Supra_devil]

i am probably going to do a relay with switched power from the key, then i will run power to the relay from the battery, send that power to a splitter placed anywhere one likes. Under the glove box has an abundance of space. So does under the dash pad in some spots but thats a pita, under the drivers side dash there is enough room but not lots.