need help hookin up shift light and air/fuel gauge

[2006crxtuner]

Hey guys, i just swapped in a b16a into my 91 honda dx crx. I have a shift light that ive been wanting to hook up but not sure how to. This also goes for the air/fuel ratio gauge. So if anyone could give me some pointers and help out I would really appreciate it.

Thanks in advance.

 

[K2e2vin]

Shift light: hook up +12v to switched 12volt source(tapped of of under dash fuse box or something), ground to frame, and signal to the rpm signal at the distributor(usually blue wire) or the wire under the dash to the stock tach.

A/F gauge, same as above for power but signal goes to the O2 sensor.