No, you will need external power for the tuner.  The connection to the 
radio via the interface cable doesn't bring any power to the 998.    A 
smaller tuner will get it's power there, but the  998 needs 1.5 amps, 
and there isn't that much power on the molex connector on the radio, 
so this wire isn't even connected in the 998.

You will either need a supply for the tuner, or do what many of us do 
and power the tuner direct from the station's power supply.  The tuner 
comes with a 12 vdc wired barrel connector wit bare wires at the other end..

When you do connect via the interface cable and have it properly 
powered, and have the interface menu configured, you must always be sure 
the tuner is powered up first before the radio is turned on, or the 
radio won't recognize the tuner.

Have fun, Steve KW3A

On 12/24/2015 7:40 AM, Richard B. McDonald wrote:
> Hi!
>
>
>
> I have purchased an MFJ-998 auto tuner.  It does not come with the separate
> power supply for it, the MFJ-1316.  However, I plan to use the rig interface
> cable for it, the MFJ-5114K for my Kenwood TS-2000.  So, 1) does the
> interface cable provide enough power to the MFJ-998 while the TS-2000 is
> powered on, and also 2) if the TS-2000 is not powered on can I still turn on
> the MFJ-998 and adequately operate it (e.g., manipulate its menus)?
>
>
>
> 73,
>
> Richard KK6MRH
>