Replace Internal Speaker for Uniden DCX150 Cordless Handset

Hello and thanks in advance for reading my question...

I have a Uniden cordless phone system with a base unit with answering machine that utilizes 2 cordless handsets. I was opening one of the handsets and accidentally ripped the wires that connect to the speaker on the inside of the back of the chassis. The wires ripped from the speaker itself so I cannot re-solder it as it's not a serviceable solder point. So now I must find a replacement speaker with, hopefully, the wires already attached - which I can then solder myself to the existing circuit board. The handset model # is DCX150 and on the speaker itself it shows what I presume is a part number SP588. I've tried doing a search on the web using this part number and couldn't come up with anything. If anyone has any idea as to how I could obtain a replacement speaker for this phone - I'd be grateful to hear about it.

Many thanks,

Mark