There are two bolts on the front edge of the bottom of the seat. One per side, take those out then slide out the bottom seat cushion. Remove the two bolts holding on the back of the seat. It should lift out. Then one or two screws should hold on the back deck.
Infinity speakers
6/9 in the front and 5.25 in the rear
Yes and yes
6x9 in the doors and the rear
6x9 in the front doors, 5.25" in the rear doors. The stock infinity speakers are problematic.
i believe they are 6.25" all the way around
For a 1998 Dodge Ram 1500 extended cab, there are two different sizes of speakers. The front speakers are 6x9 and the rear are 5-1/4.
The front speakers sre 6 1/2
The speakers in a 2003 Dodge Intrepid measure 6 3/4 inches in the front door. The rear door deck speakers measure 6 3/4 inches and the front dash speakers measure 3 1/2 inches.
Dodge Spirit and Caravan are the only ones I can think of as they carry the same wiring and everything as a Dynasty would.
It runs to the factory amp. For the stock speakers
I have a 1993 dodge shadow and I thought it was complicated to change my speakers to but, it really isnt. The rear spearker have that plug of wires all you need to do is cut the wires and use the inner two wires for any aftermarket spaekers. The front speakers are a pain to get to since you have to mess with the door clips and pull the pannal off but the speaker wires are self explanitory. Make sure to electric tape the other wire so is not to have a short. Any other questions on how to get to or remove or install spearker componets e-mail me @ Allicedout19@yahoo.com