Wiring diagram + where are the crossovers?

Has anybody got a picture of the back of standard HU or an illustration including wiring diagram? Also where are the crossovers located?

Thanks in advance.
 
On the tweeter they are just a small capacitor on the side, never had the mid's out but I expect the same.

It's very basic filters on both that's why they are poor quality.
 
what do you mean filters guy

what are the filters and what do they do . i changed my front speakers but the sound really bad . did i miss something?
 
They will do without crossovers they filter the high & low frequency.. You don't want bass coming out if the tweeter!

TS Q131c's do the job with no fuss.
 
simples..back are 2 way coax's and the front are components with the crossover/filter attached to each speaker.