Power door locks, 2004 Express

Bought a new Express this Spring. Should have ordered it with power door locks but didn't. I'd like to install an aftermarket kit now.
Before I take the door panels off to check, does someone know if the wiring for power locks is already in the doors? TIA DFB "When a legislature undertakes to proscribe the exercise of a citizen's constitutional rights it acts lawlessly and the citizen can take matters into his own hands and proceed on the basis that such a law is no law at all." - Justice William O. Douglas
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.