i'm lookin to ad a guage cluster with a tach in my 91 civic hb. i can get a good deal on one that was on an automatic. my question is will everything still work even tho my car is a manual and the cluster has the automatic gear lights? i figured the lights just wont come on obviously. if anyone knows for sure let me know so i can decide if i want to buy it or not. also it has to be from a 90 or 91 for everything to work right? i think i read an 88-89 wont work properly. anyone with experience with this chime in please.