Speakers for the front are 4x6 plate speakers. There are a good amount of aftermarket speakers available. You could also hit eBay and get 5 1/4 adapters so you can get the round 5 1/4 in there. Modification is fairly simple.
4X6
The front speakers in a 1994 Jeep Wrangler YJ measure 4 inches by 6 inches. These speakers are in the dash of the vehicle.
The dash speakers for a 1998 Jeep Wrangler are typically 4 inches in size. When replacing them, it's important to ensure that you select speakers that are compatible with the vehicle's wiring and mounting depth. Additionally, some owners may choose to upgrade the speakers for better sound quality, so checking the specifications before purchasing is advisable.
5.25
the stock speakers are 4x6 inches
The front speakers in a 1997 Jeep TJ are 4"x6"
4" by 6"
5 1/4"
They are 6 1/2.
THE SPEAKER SIZE ARE 4X6.... ONCE THEY ARE CHANGED WORLD OF DIFF. IN SOUND...
The rear speakers in a 1998 jeep wrangler are 5 1/4 The size is 5.5" but I installed 6.5" speakers to replace the stock ones, and i didnt do any drilling or anything of that sort. hope it helps
infinty sound system! If you want to improve sound go see a speacialist and get a new system. If you want to fix your Jeep speakers, google - Jeep Speakers - and go shopping.