1998 dodge neon 5 speed , im trying to hook up an aftermarket tach , where do i...

[Benjammin R]

...wire it for rpm signal ? 1998 dodge neon 5 speed , im trying to hook up an aftermarket tach , where do i wire it for rpm signal ? i wired it to a gray wire with blue stripe as someone said but it only revs to about 3 , different wire or location ??

thanks