Guys, I have a 1992 Jeep Cherokee Laredo with the I6 4.0 auto. I have been having problems with it starting. Well someone told me it may be the NSS. Well usually if it doesnt start, I just push the sfhiter foward, and turn the key, and it starts. Well now that doesnt work. I had to replace the battery, and when we did, my friend hooked if up backwards. Then we noticed that it was backwards, so we swapped the poistive and negitve cables. Could this have casued a no start issue. If so what things could I have messed up? I have checked the fuses, and replaced the ones were blown.