SWM and THR22 (tivo)

I'm trying to help a friend update his system. (my mistake)



I have never worked with the SWM before so I'm kind of lost.



Currently he has a Round dish single LNB with 2 wires coming out of it going directly to his THR22. I don't believe he has a multi-switch anyplace in between but I could be wrong. The LNB with 2 wires out is really the multi-switch correct?



I am sure we can all laugh at this because he is getting no HD on his HD TiVo, but that how he has had it for about 2 years now.



Anyway I guess he wanted to upgrade....so he bought:



An oval dish an SL5 with SWM.



I know he only needs 1 line from the SWM to 1 input on the TiVo and he can still get 2 tuners.



Can I just run the one single SWM line directly to the TiVo? or do I need a Power injector? and if so which one would you recommend?



Also do I need the broadband converters or with SWM they are not necessary?



Can't seem to find a wiring diagram online that shows my exact need SL5 SWM to a lone single TiVo THR22



Thanks in advance for any help you can provide me.