How to retain power to existing screen after HU upgrade?
 

I recently installed an aftermarket radio and left the original. how do I get power back to the original lcd screen so I can see the temp readings. Thanks

what year/trim?

what wire harness adapter did you buy (make/model)?

what wire harnesses were left unplugged and/or what wires were missing from the new harness adapter?

It's a 2006 honda accord sedan lx. I think the issue is I didn't buy any adapter. We pulled the power plug from the existing and with a wire harness connected it to the power of the aftermarket radio (Pioneer). What type of adapter should I look for? Thanks