12 volt lead into cabin for tv antenna how much power draw

[TC8]

Hi all, I have an 05 190 popular on a Chevy. There is a wire lead into the entertainment cabinet. It powers the antenna for the tv. How much can I draw from the circuit? Anyone know?

[Bud]

Originally Posted by TC8

Hi all, I have an 05 190 popular on a Chevy. There is a wire lead into the entertainment cabinet. It powers the antenna for the tv. How much can I draw from the circuit? Anyone know?

Hi TC8,

I have the same B and have wondered. I only use it for a 12 volt battery meter, virtually no power required. I decided to not use any 12 volt stuff in that cabinet. Hopefully someone will answer your question, but if not what I was going to do was power up the tv using the roof ant and amp. Then pull each 12 volt fuse and check what happens.

Or give Roadtrek a call since it does not appear in the manual.

Bud

[Bruceper]

Likely 5 amps for a TV power line. Do you have any unknown breakers that you can shut off and then check for power to that line?

[TC8]

I’ll try that, I did hook up a usb that works and a tv on a 3amp fuse and it works.

[JohnnyFry]

Check the wire gauge. The antenna amplifier draws about 150-200 milli amperes so the circuit may have only a 1 or 2 amp fuse and be wired with #16 AWG. If the wire is larger, say #12 or 14 you could safely fuse it for 10 or 15 amps which would be sufficient to power a LCD TV/DVD player without any problem. Most small LCD TV combos draw less than 5 amperes.