alright so i have a 91 crx dx... im assuming they come without rear windshield wipers because mine does not have one, but i have an 88 si with the rear wiper and am wanting to swap the complete rear hatch and wanted to know how to run the wireing for the rear wiper. also i am fearly sure that i already have the switch for the rear wiper on the 91.
also is swapping the hatches as easy as undoing the bolts and unplugging wires?

 

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bump please help...

 

i'm not familiar with this part of the crx so the following is for a hatch but it should get you started.

start by tracing the wiring harness in the hatch to the quick disconnect fitting. Not sure where this is on a crx but on hatches the disconnect can be found near the passengers side tailight. there's an odd looking clip that you'll need to squeeze, press in and finally pull down and out. now you'll be able to disconnect the wiring harness.

if the wiring is the same on both cars swap the hatches.
tips-you'll need a 7/16" open end wrench to remove the hatch struts. Leave the hinges alone and just swap the hatch. you'll need fishtape to pull the wiring harness back down to the quick connect plug.

hope this helped/gl