Existing trunk power Amp wire
 

Good Evening: 1992 SC 400 owner....125k. 19 inch wheel...they do fit well.

The system gave up....so I'm going to replace the entire system, with of course back up camera capabilities.My question is. Is the power wire, running power to existing amp, beefy enough to handle an efficient aftermarket amp? nothing crazy,
I know I can figure out amps, but without actually tearing into the trunk, taking the system apart, does anyone have any info, as to the gauge of the wire, powering the trunk amp? Thanks in advance.