i have 2 aftermarket head units, a punch 200 amp old skool, 5 tft 8" monitors, power inverter for ps2, 2 extra cig lighter ports, hard wired radar det., 5 after market gauges (boost,a/f,oil pressure, voltage,& egt, and an aftermarket viper alarm all on my stock charging system with no upgrades and all running off the same 12v source lol.. i need to rerun some wires but its been this way for over a year with no problems, i also have the af-x udp to boot so my guess is you would be fine with what you are getting
p.s my battery is 7 years old too
joe

98 RS: Mods: Custom Stage 2 Turbo kit , 55mm throttle body, gutted cat, evo cat back exhaust, p/p intake manifold,p/p Head, af-x underdrive pulley, B&M short throw shifter,Built bottom end Je pistons eagle rods 8.8:1 compression.





Status:Up and running again! nice new paint

Custom stage 2 hahn turbo kit
Hahn Super 16g turbo (ceramic coated)
Hahn manifold (ceramic coated)
Hahn Downpipe assembly
Hahn intercooler piping smic
Hahn oil line kit
Type s bov
2G Gsx smic
walbro 255 fuel pump
Synapse missing link
Vortech s-fmu
NGK Bkr7e11 Plugs
A-pillar w/boost, a/f, oil pressure gauges


New Addition: 2007 Eclipse GT 6 speed