Senior Tech Team
Join Date: May 2017
Location: Bossier City, Louisiana
I did my AAW harness with the dash in but the dash cover removed. It also helped that at that time I did not have a windshield installed but it could still be done with the glass installed.
With the dash installed, its easy to lay out where the wires go, especially that dash harness. Just one guy's opinion here.
1970 El Camino under Reconstruction - 5.3L LS VORTEC Engine and 4L60E Transmission