hookup for aftermarket dome lite 73 gmc

[frankyjoet]

have an aftermarket dome lite w 2 individual lights on either side and 2 switches. at this time the light works w only the sw's. my ? is where does the dome wire get connected which is coming from the hdlite sw. this wire is hot. the door jamb sw's are also involved. i also have 2 interior courtesy lights. 73 gmc thanks for any info