1998 jeep cherokee 4.0 liter

My Jeep will run I feel like it's a wiring issue was
wrecked but it's 100% salvageable. New radiator
new front an back ends new fuel pump, new
alternator, new starter, etc. three motors later. I can
turn the key to the on position take a wirer from the
(+) wirer on the starter straight to the (+) of the
battery an have it run really strong. But without
doing that, I can turn the key to firing an I get a
clicking noise underneath the dash passenger side,
(reminder was wrecked steeling wheel an dash air
bags went off but all new replacements.