95.5 isuzu rodeo

 i am having problem accessing the doorlock wires from the kickpanel what is a better and easier way to access these wires. 

Also i had put a remote starter on this vehicle but it wont' start it will attempt then shut off what am i doing wrong i chose the proper tach wire.

For the tach did you use the Blue or BLACK/ red at coil or coil pack?

I used the blk/red wire for tach is that correct.