[Motorola] question on Expo connectors

[JEFFREY MICHAEL KENYON]

Good afternoon everyone.  I have a question about the connectors for the
Expo on the top.   the first  one being in between the on-off and the channel
selector, and then the second one being  between the channel selector and
antenna.  My first question is how do you remove the metal cover around
the larger connector between  on on-off and channel selector, and then my
second question  is where do you find the right type of plug  or the
smaller connector next to the antenna?  
	I can remember when this radio was used as a mobile and portable
radio there was the speaker mic and something else in both of these jacks.  
	The rubber cover that went over the metal cover on the larger jack
was long gone when I got this radio, but I am wondering about these
connectors,  and what I can connect to the radio   from them besides the
speaker mic?   any information would be appreciated, and thanks in advance.