si into dx cluster swap that isnt working right

[89y49rexsi]

hey guys i either have a short or a bad ground but i cant find it

sometimes when i turn my blinker left my tach will jump up and down
sometimes it wont

other times when i pull my ebrake the tach will go to 0rpm other times it wont

some times when i turn my lights on my stereo shuts off other times it doesnt

some times when i press the brake my tach will go nuts other times it wont

the gas gauge and temp guage have decided to switch positions with each other, which wouldnt be all that bad except the fact that the gas/temp guage decides where it wants to be not where it should be

i drive an 89 civic dx sedan
it has a d15b2 at the moment
i put in my crx si cluster from my 89 crx si
i have done alot of reseach and it should be plug and play but it aperently isnt so any help would be nice

 

[89y49rexsi]

well im pretty sure that i figured it all out

i checkd the harness grounds and they are all good and tight but the fuse box ground is very very small
smaller than stock so im going to replace it with the one from my crx and the main ground is pretty small as well so im going to swap both out for larger sizes

the fuse box power wire is pretty dang small as well so i will do that one too while im at it