Hi! The oem rears speaker are 4" or roughly 10cm. You can easily upgrade them to 5.25"/13cm. If search on eBay you can buy the upgrade kit that comes with 13 cm speakers and adapter plates. Hope this helps. Thanks for watching👌🏼

Hi! The oem rears speaker are 4"/10cm. You can easily upgrade them to 5.25"/13cm. If search on eBay you can buy the upgrade kit that comes with 13 cm speakers and adapter plates. Hope this helps. Thanks for watching👌🏼

You can heat the glue around the speakers and rotate it to free up the tabs and it comes off, sometimes it doesn't work because the glue is super old and hardened, 2nd method is using a thin flathead screwdriver and gently pry the speaker off the tabs! It doesn't matter is you break the tabs imo as aftermarket speaker won't slot in there anyway. I hope this helps you man🤜🏼🤛🏼

Thanks for the quick reply ill give it ago🤞

@@scottireland6116 no worries mate👌🏼